Federalists- Alexander Hamilton, Ben Franklin, George Washington, James Madison, and John Jay. Supported the constitution as is. Supported strong central government.
Anti-Federalists: Patrick Henry, Sam Adams, George Mason, Richard Henry Lee. Feared strong central government would endanger people's liberties. Could not be government by consent of people. Worried about "Laws necessary and proper" clause. Wanted Bill of Rights.
Scientists did not come from Spain.
Answer: Slavery was legal in most societies at some time in the past but is now outlawed in all recognized countries. The last country to officially abolish slavery was Mauritania in 1981. Nevertheless, there are an estimated 40.3 million people worldwide subject to some form of modern slavery.
Although even now people are still being enslaved without permission.
Hope this helps love.. (: